<!DOCTYPE html>
<html>
<head>
	<title>HIS example</title>
</head>
<body>
	<div>
		<div style="width:1px; height:1px;position:fixed;left:0px;top:0px; background-color: #ff0000;"/>
	</div>
	<a href="green.html">use for OFF and Detect click me to turn on ( after detect )</a>
</body>
